The National Sample from the 1851 Census of Great Britain an Interim Report on Methods and Progress

Abstract

In the last years, the use of geographical information systems has been common in many historical and geographical studies. Perhaps one of the least known applications is network analysis, a series of functions related to hydrology and mobility. Since 1994, researchers have used network analyses to understand costs and time expenditure in transportation in Roman times, with the aim of modeling commercial routes. Archaeological objects were employed to confirm those commercial distributions whose quantities were related basically to transport costs. The present articles go far beyond and attempt to understand decisions in building a transport network based on time series. It seems that not all Roman decisions in transport infrastructure were due to economic reasons; some parts of Roman roads were built basically for political reasons and affected later developments.     

Wildlife Visual Imagery: Do Pictures Used to Promote Destinations Online Match On‐site Species Visibility at Two Geographic Destinations?

Diverse photographic images (pictures) are used to promote wildlife tours on the Internet. But what pictures are used and are they likely to accurately reflect what visitors might see, and hence create realistic expectations for tourists? The relative importance of wildlife and the prevalence of iconic species were assessed for pictures on the Internet used by six English tour companies offering wildlife tours to very different destinations: Southern Africa and Australia. These were then compared with the likely visibility of wildlife at the destination. The content of 926 Southern African pictures representing 1316 different subjects, and 228 pictures representing 307 different subjects from Australia were classified into four themes (wildlife, landscapes/vegetation, activities, accommodation). Wildlife, particularly large mammals, was more frequently used for Southern African tours (43%) whereas pictures for Australian tours were often of landscapes (45%). Large, social mammals active during the day and hence highly visible (e.g. elephant, n= 64) were often used, while iconic, but cryptic, species such as koalas (n= 7), Tasmanian devil (n= 1), leopards (n= 12), and black rhinos (n= 2) were seldom used. Therefore, online pictures used for wildlife tours appear to merge well with what tourists are likely to see at the destination, but appear to diverge somewhat from established destination images for these two regions, particularly Australia.     

Emergence of an integrated city-system in France (XVIIth–XIXth centuries): Evidence from toolset in graph theory

In this article, the authors discuss the emergence of an integrated city-system in France one century before the Industrial Revolution, starting from two different databases, the postal roads relays and the cities and towns populations, between 1632 and 1833. They first model historical distances, weighted by elevation and connectivity (measured as a conductance). A major transformation of inter-urban exchange space is then enlightened, with new roads systematically privileged in the northern part of France and the largest cities, but avoiding mountains. They then study territorial integration processes on two different scales: the national, with the diffusion of hubs (characterized by a high betweenness centrality) all over French territory, and the regional, with the emergence of regional city-systems (modeled by a Reilly equation) in the northern part of France. The role of medium-sized cities as necessary links for connecting local and national scales is emphasized in most results.     

Roads to Inequality: Infrastructure and Historically Grown Regional Differences in the Markham Valley,Papua New Guinea

Roads are one of the most salient symbols of development and modernity for rural citizens of Papua New Guinea (PNG). Multinational corporations, members of parliament, and villagers frequently point to roads as a key to development. However, while roads routinely improve the incomes of those connected, many of their effects are far less scrutable. Here, we examine the economic and social consequences of two roads, the Wau‐Bulolo Highway and Highlands Highway, for two villages in PNG's Morobe Province, and consider the processes that make their outcomes so different. Tracing the history of the two highways and considering a contrasting pair of case‐studies, we explore how roads simultaneously bolster income and drive interregional economic divergence. We demonstrate how the spatial and historical contexts the Highways run through, coupled with the relationships of patronage and dependence they rely on, produce contingent social outcomes and shape local ambivalence towards the outcomes of roads.     

Seismic Risk Assessment and Mitigation at Emergency Limit Condition of Historical Buildings along Strategic Urban Roadways. Application to the “Antiga Esquerra de L’Eixample” Neighborhood of Barcelona

ABSTRACT

This article presents a management tool for the large-scale assessment and mitigation of the seismic risk of urban systems. The research introduces a new perspective for a scientifically tackled holistic approach. The proposed methodology considers multiple objectives, from the identification of the most vulnerable buildings whose collapse may hinder the operationality of strategic urban roadways after the occurrence of an earthquake, up to the proposal of proper interventions to improve their functionality. The approach uses a performance-based approach founded on the concept of urban Emergency Limit Condition. Plotting maps of geo-referenced scenarios by means of GIS software have revealed to be extremely useful to detect the weak points of the urban network and to plan suitable strategies of seismic risk mitigation and appropriate enhancement of reliability. The proposed methodology is applied to the “Antiga Esquerra de l’Eixample” neighborhood of Barcelona that hosts the strategic route to the hospital and is characterized by high levels of seismic vulnerability of existing buildings and exposition of its high-density population.     

Thirty Years of Monitoring in England — What Have We Learnt?

Abstract

Over the last thirty years, over sixty separate episodes of monitoring waterlogged archaeological sites have been carried out in England. This paper lists these projects, summarizes basic information about them, and reviews what we have learnt over these last thirty years. Recommendations are given to help improve future monitoring projects. In particular, it is suggested that more work is needed on assessing the state of preservation of a site before monitoring is considered; that a proper project design needs to be developed at the outset of the work; and that more thought should go into deciding why monitoring is needed for a given site, including identifying mitigation options that can be initiated if monitoring data suggest optimum conditions for survival are no longer being maintained.     

From Fierce to Adorable: Representations of Polar Bears in the Popular Imagination

From the late 1950s to the early 1980s, technology in the form of aircraft, high-powered rifles, and tranquilizers changed the relationship between humans and polar bears. Whereas the polar bear had been conceptualized as a fierce beast in early-modern expeditionary literature, in the second half of the twentieth century the bear was depicted as vulnerable due to overhunting and in need of scientific study, a process that in itself portrayed the helplessness of the animal when confronted with postwar technologies. Popular American and Canadian periodicals conveyed this shift in the bear’s image. This article examines the polar bear’s image as depicted by the media and argues that the use of certain technologies by sport hunters, wildlife biologists, and conservationists enabled a domination of the bear that altered the animal’s placement within the popular imagination.     

Placing GIS in sustainability education

As public awareness about sustainability grows and as higher education advances sustainability more comprehensively, geographers have an opportunity to take a role in sustainability education. This article examines (1) what constitutes sustainability education, (2) how geographic concepts and Geographic Information System (GIS) are relevant to sustainability education, and (3) how geospatial thinking can be incorporated into the sustainability curriculum using GIS. This research proposes five geospatial inquiries that students can make to explore sustainability issues using GIS, which are spatial distribution, spatial interactions, spatial relationships, spatial comparisons, and temporal relationships. Definition, examples, and uses of these five geospatial inquiries supported by GIS are provided.     

信息时代的地理学研究——NCGIA对若干理论问题的探索

本文以美国国家基金委员会资助美国国家地理信息与分析中心(NCGIA)进行的瓦伦纽斯(Varenius)研究项目有关信息时代地理学研究的一系列中期研究报告与论文为基础,介绍了中心一些著名学者以地理学家独特的地理哲学思维,对信息时代的地理学研究若干理论问题所作的新探索与阐述,旨在为国内学者了解、追踪地理信息科学的新发展,开展地理信息科学的跨世纪研究提供借鉴。     

EDITORIAL

In undergraduate geography programs in the United States there is increasing demand for students to be prepared for real-world project management and to possess strong GIS technical skills and cartographic communication skills upon graduation. There is, however, limited time and opportunity within the framework of traditional undergraduate programs to offer this type of hands-on training while simultaneously increasing conceptual and theoretical knowledge and improving technical abilities. This article outlines a framework for integrating community partnerships into real-world GIS learning opportunities for undergraduate students. Our primary objective is to provide an active learning opportunity that mimics a real-world project scenario within the Geography Department's undergraduate GIS curriculum.     

良渚遗址群考古地理信息系统构建探索

运用GIS软件对良渚遗址群多源数据进行数字化处理,构建良渚遗址GIS应用模型,为进一步考古研究与文物保护提供更为科学的方法和便捷的管理手段。本文阐述良渚遗址群考古信息的空间数据库与属性信息库的建设,并简单介绍了数据采集与处理过程。     

基于GIS的黄土塬区居民点空间分布研究

借助GIS的空间分析功能,对黄土塬区居民点进行空间分布研究,得出黄土塬区居民点空间分布是随机的,决定这种分布的主要因素是地形地貌,历史继承性也对本区居民点空间分布有一定的影响,并指出在黄土塬区小城镇体系的建设中,城镇布局应主要考虑地形因素,同时也应注意城镇布局遵循经济地理区位论理论,以利于区域经济发展的需要。     

Physics-Based Simulation Model of Post-Earthquake Fire Spread

This article describes a new model that simulates the spread of post-earthquake urban fires. Adapting and integrating compartment fire models, this new model explicitly represents: (1) the evolution of fire within a room or roof; (2) room-to-room spread within a building through doorways, by burning through walls and ceilings, and by leapfrogging between windows; and (3) building-to-building spread by window flame impingement; radiation from window flames, room gas, and roof flames; and branding. The model can be used to explore how much, how fast, where, and by what modes fires will spread, and what factors influence fire spread.